What is "peagrit"

Pisolite \Pi"so*lite\, n. [Gr. ? a pea + -lite: cf. F. pisolithe.] (Min.) A variety of calcite, or calcium carbonate, consisting of aggregated globular concretions about the size of a pea; -- called also peastone, peagrit.

Note: O["o]lite is similar in structure, but the concretions are as small as the roe of a fish.

n. (context mineralogy English) A coarse pisolitic limestone.